Sample LC86-992

NavDat sample number 61364 · RHYODACITE

Sample

Latitude	40.5043
Longitude	-121.516
State / province	California
Volcanic field	Lassen Volcanics, Eagle Peak Sequence

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2.65		0	5.3

Item	Value	Unit	Method
SIO2	69.69	WT%	WDXRF
AL2O3	15.53	WT%	WDXRF
FE2O3	0.58	WT%	WDXRF
FEO	2.08	WT%	WDXRF
FEOT	2.61	WT%	WDXRF
MGO	1.2	WT%	WDXRF
CAO	3.18	WT%	WDXRF
NA2O	4.23	WT%	WDXRF
K2O	2.92	WT%	WDXRF
TIO2	0.4	WT%	WDXRF
P2O5	0.13	WT%	WDXRF
MNO	0.05	WT%	WDXRF
LOI	0.76	WT%	LOI
TOTAL	99.38	WT%	WDXRF
MG_NUMBER	50.7		WDXRF
RB	72	PPM	EDXRF
SR	346	PPM	EDXRF
BA	839	PPM	EDXRF
Y	21	PPM	EDXRF
ZR	169	PPM	EDXRF
NB	9	PPM	EDXRF